Answer:
The coral reefs of the Caribbean are thought to be under threat
Explanation:
Overfishing threatens over 60 percent of Caribbean coral reefs. Declines in coral cover and increases in algal cover have been observed across the region. This analysis identified about one-third of Caribbean reefs at high threat from overfishing pressure and about 30 percent at medium threat.
Answer:
Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor. These structures may or may not have the same function in the descendants. Figure below shows the hands of several different mammals. They all have the same basic pattern of bones
Warmer or hotter I’m just built different sorry
Answer:
This project is feasible because plants that don't have photorespiration are photosynthetically more efficient and have higher productivity compared to plants that undergo photorespiration
Explanation:
C4 plants are photosynthetically more efficient compared to C3 plants because these plants (C4) don't have photorespiration, which is a process that decreases the photosynthetic activity. Photorespiration is the process by which the Rubisco enzyme, which is involved in the first step of carbon fixation, adds oxygen to Ribulose 1,5-bisphosphate (RuBP), an organic compound involved in photosynthesis. This process (photorespiration) is known to waste energy generated by photosynthesis, thereby making photosynthesis less efficient. It is for that reason that C4 plants have high productivity. Some examples of C4 economically important crops include maize, sorghum, sugarcane, etc.
The statement that BEST describes the relationship between concentration and enzyme activity is when substrate concentration decreases, enzyme activity decreases (Option B).
- Enzymes are proteins that speed up chemical reactions by lowering the activation energy of that reaction.
- Some factors that alter enzymatic activity include temperature, pH, and substrate concentration.
- An enzyme works in optimum condition as long as there is more substrate available which can be broken down by the specific enzyme.
- However, the enzymatic activity increases as the substrate concentration until a limiting value is reached.
In conclusion, the statement that BEST describes the relationship between concentration and enzyme activity is when substrate concentration decreases, enzyme activity decreases (Option B is correct).
Learn more in:
brainly.com/question/4229661?referrer=searchResults
